Question

A certain trait is represented by a capital letter r or a lowercase letter r. each parent is homozygous for the trait. which are the possible genotype combinations for their offspring? select 3 options. rr rr rr rrr r

Answer 1

Answer:a b c

Explanation:teacher told me

Answer 2

Step-by-step explanation:

Assuming that one parent is homozygous dominant and the other is homozygous recessive.

parental genotype RR 》 rr

Gametes: (R) (R) 》 (r) (r)

Random fertilization: (punnet square)

r r

R Rr Rr

R Rr Rr

f1 genotype: Rr , Rr, Rr, Rr

percentage: 100%

all the possible genotype combinations of offspring are Rr